Bottle cap



F. A. BURTON.

BOULE cAP.

APPLICATION FILEDy .|AN. 27,1922. 15,427,259, Patented Aug. 29, 1922.

INVENTORV v reder/'ckwzon 2 BY/,a LMJLO/WQLW ATTORN are merely intended for use once or twice, desired.

lfuNrllsD A'sy "r..r|a' .s PATENT oiriflcl,A

BOTTLE csr.

1942??,259, Specication of Letters Patent. Patented Aug. 29, i922.

Application filed January ,27, 1922. Serial No. 532,176.

To allwhmz'tmay concern: v

Be it known that I, FREDERICK A. BUR'roitI,

a citizen of the United States, and a res1- cup form the ridges or` ribs of the screwpressions or` grooves of the screwthreads dent of the borough of Manhattan, city, thread onf the outer side of the cup and county, and State 'ofvNew York, have invicey versa. y p p vented certain new and useful ,Improves The cup shaped elements are each of subonthe inner surface of the mouthof the ments in Bottle Caps, of which the follow-' Stantially the same size and made of mai is a speciiication. terial of the same y thickness, preferably y invention relates to an improved cap metal, so that one cup will fit into and be for thermos bottles, which consists 'in ya pluclosely nested with the other and the entire ralityof cups of like shape, the inner cap serlesfso nested can be secured to the screwbeing secured to the thermos bottle, as well 4threadson the neck of the thermos bottle known in the art, and the series of outer in the manner now in vogue.

--caps being respectively secured to each In the drawings, A is a thermos bottle, B

other .andthe inner cap so as to provide al the neck, C al cup shaped cap consisting of a cap which may be formed of a series o teleseries of cups, 0- and 02, c3 and c4, though it scopic cups,all of which may be secured in is to be understood the number'of cups complace` and may be readily detached from the Qrising the series may be as many as desirthermos bottle and used separatelyas cups. able and within reason.

vIn the drawings: The neck of the thermos bottle has the Fig. 1 is an elevation of a thermos bottle usual stopperS inserted thereinand is pro as well understood. The inner cup c or cap x Fig. 2 is an elevation of a thermos bottle consists of a cup portion 11, the outer edge pro'vlded with a plurality of cup shapedv of which is provlded witha pressed up screwcaps securedto the structure as shown in threaded surface 12, havinga series of inner Fi 1, depressions and projections 13 and a series ig. 3- is a vertical section, partly in eleof complementary depressions and projecvation, of an' enlarged view of an upper tions onthe outside thereof, as at -14, all

-of ordinary type constructed to lreceive a vided with a screwthreaded surface 10, all

cap structure embodying my invention.

portion of a thermos bottle and cap strucformedby compressing or stamping the said ture embodying my invention. screwthreads in the inner and outer surface It is well known that thermos bottles are of the mouth portion 'of the cup. conveniently carried by parties consisting of The inner series of screwthreads are ar- -several persons when traveling o'r when goranged toengage with the screwthreads 10 ing-on p1cnics and the cap ordinarily. applied formed on the neck B of the thermos bottle, to the top of the bottle to cover the sealing and the outer series of screwthreads at 14 cork is utilized as a cup' in drinking theil `are in position to engage thev inner screwcontents of the thermos bottle. As the botthreads 23 of the adjacent cup portion c2, tles are now constructed, it is 'necessary to the outer screwthreads 24 on said cup poruse asingle cup for the use 'of several per- -tion 02 engaging the inner screwthreads 33 sons and this is not always found to be upon the cup portion c3, and the outer screw'- entirely convenient and satisfactory. Picthreads 34 engaging the inner screwthreads nic parties sometimes lcarry a'seriesof pa- 43 of the cup portion 0*, leaving the outer per cups, commonly called Lily cups, 'or' screwthreads 44 for engagement with the other cups of like'nature, but these cups screwthread on an adjacent cup portion, if

and their life is short and they have to be The cups, if desired, are provided at their thrown away. respective mouths with lips 50, 51, 52 and My' invention consists in not only form- 53, as shown,

ing a cap for the thermos bottle in substan- The threaded portionsof the cupsare entially the manner now in vogue, but this larged or offset from the cup portions by cap is made up of aseries or Aplurality of means of iange portions 60, 61, 62 and 63 similarly cup shaped elements, each of respectively to'prevent the inner ridges of;

which is provided near its outer edge or the screwthreads from contacting with the mouth with fastening means which `consist outer surfaces of the cups as 'they are aspreferably of screwthreads so that the desembled. v

."By means of the construction above del scribed, a suiicient number of cups may be conveniently carried and used by a party of several persons, each having the benefit of an individual cup.

The metal cup-shaped `elements forming the cap may be known, in' order to closed more attractive.

changes of construction could be made within the scope of my invention,it is intended that .all matter contained in the above description or shown in the accompanying drawing shallbe interpreted as illustrative and not in a limiting sense.

Having thus described the invention, what I claim as new and desire to secure by Let ake the bottle when 'ters Patent is 1. A cap for thermos bottles which com prises a number of cup members adapted to telescope on each other and havin interlocking screwthreaded portions, sait? screwthreaded portions being'enlarged or offset from the walls of the cups to prevent interference of the screwthreads withthe surfaces of'V the cups.

finished smooth, as well d 2. A cap for thermos bottles which comprises a number of cup members having external and internal screwthreads adapted to Y permit said cup members to be nested and secured together to form 'a unitary cap the dimensions and shape of the body and screwthreadedv portions being such that the cups' may be screwed to each. other or any 1ndividual cup may be screwed to the bottle.

3L comprises a bottle having a lscrewthreaded surface onits neck and a cap for said bottle A device of thekind described whichv adapted to screw directly onto said .neck f said cap'comprising a number of culp members adapted to telescope on each ot er and havin-g interlocking screwthreaded portions;

said screwthreaded portions' being enlarged.

or offset from the walls of the cups to prevent interference'of the screwthreads with the surfaces'of the cups. f

In witness whereof, I my hand at the borough of Manhattan, city and State 4of New York, this 23 day of J anuary, 1922. V

rannnaioir A. BURTON.

have hereunto set V 

